package com.zsgeek.wisdchain.qutu.tools;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Environment;
import android.support.v4.content.ContextCompat;
import android.text.TextUtils;
import android.util.Log;

import com.zsgeek.wisdchain.qutu.BuildConfig;
import com.zsgeek.wisdchain.qutu.QuTuApplication;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Formatter;
import java.util.Locale;

/**
 * 全局工具类
 *
 * @author Wanghengbin
 */
public class LogUtil {

    /**
     * Log工具，类似android.util.Log。
     * tag自动产生，格式:customTagPrefix:className.methodName(Line:lineNumber),
     * customTagPrefix为空时只输出：className.methodName(Line:lineNumber)。
     * http://blog.csdn.net/finddreams/article/details/45569089
     */

    private static final String customTagPrefix = UrlPathHelper.PackageNames; // 自定义Tag的前缀，可以是作者名
    private static final boolean isSaveLog = false; // 是否把保存日志到SD卡中

    // 容许打印日志的类型，默认是true，设置为false则不打印
    private static boolean allowD = BuildConfig.LOG;
    private static boolean allowE = BuildConfig.LOG;
    private static boolean allowI = BuildConfig.LOG;
    private static boolean allowV = BuildConfig.LOG;
    private static boolean allowW = BuildConfig.LOG;
    private static boolean allowWtf = BuildConfig.LOG;
    //规定每段显示的长度
    private static int LOG_MAXLENGTH = 2000;

    private static String generateTag(StackTraceElement caller) {
        String tag = "%s.%s(Line:%d)"; // 占位符
        String callerClazzName = caller.getClassName(); // 获取到类名
        callerClazzName = callerClazzName.substring(callerClazzName.lastIndexOf(".") + 1);
        tag = String.format(tag, callerClazzName, caller.getMethodName(), caller.getLineNumber()); // 替换
        tag = TextUtils.isEmpty(customTagPrefix) ? tag : customTagPrefix + ":" + tag;
        return tag;
    }

    /**
     * 自定义的logger
     */
    public static CustomLogger customLogger;

    public interface CustomLogger {
        void d(String tag, String content);

        void d(String tag, String content, Throwable tr);

        void e(String tag, String content);

        void e(String tag, String content, Throwable tr);

        void i(String tag, String content);

        void i(String tag, String content, Throwable tr);

        void v(String tag, String content);

        void v(String tag, String content, Throwable tr);

        void w(String tag, String content);

        void w(String tag, String content, Throwable tr);

        void w(String tag, Throwable tr);

        void wtf(String tag, String content);

        void wtf(String tag, String content, Throwable tr);

        void wtf(String tag, Throwable tr);
    }

    public static void d(String content) {
        if (!allowD)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.d(tag, content);
        } else {
            Log.d(tag, content);
        }
    }

    public static void d(String content, Throwable tr) {
        if (!allowD)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.d(tag, content, tr);
        } else {
            Log.d(tag, content, tr);
        }
    }

    public static void e(String content) {
        if (!allowE)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.e(tag, content);
        } else {
            Log.e(tag, content);
        }
        if (isSaveLog) {
            if (Build.VERSION.SDK_INT >= 23) {
                int checkWriteSdPermission = ContextCompat.checkSelfPermission(QuTuApplication.getInstance(), Manifest.permission.WRITE_EXTERNAL_STORAGE);//读写SD卡
                if (checkWriteSdPermission == PackageManager.PERMISSION_GRANTED) {
                    point(UrlPathHelper.PATH_LOG_INFO, tag, content);
                }
            } else {
                point(UrlPathHelper.PATH_LOG_INFO, tag, content);
            }

        }
    }

    public static void e(String content, Throwable tr) {
        if (!allowE)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.e(tag, content, tr);
        } else {
            Log.e(tag, content, tr);
        }
        if (isSaveLog) {
            if (Build.VERSION.SDK_INT >= 23) {
                int checkWriteSdPermission = ContextCompat.checkSelfPermission(QuTuApplication.getInstance(), Manifest.permission.WRITE_EXTERNAL_STORAGE);//读写SD卡
                if (checkWriteSdPermission == PackageManager.PERMISSION_GRANTED) {
                    point(UrlPathHelper.PATH_LOG_INFO, tag, tr.getMessage());
                }
            } else {
                point(UrlPathHelper.PATH_LOG_INFO, tag, tr.getMessage());
            }
        }
    }

    public static void i(String content) {
        if (!allowI || TextUtils.isEmpty(content))
            return;
        try {
            StackTraceElement caller = getCallerStackTraceElement();
            String tag = generateTag(caller);

            if (customLogger != null) {
                customLogger.i(tag, content);
            } else {
                Log.i(tag, content);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public static void i(String content, Throwable tr) {
        if (!allowI || TextUtils.isEmpty(content))
            return;
        try {
            StackTraceElement caller = getCallerStackTraceElement();
            String tag = generateTag(caller);

            if (customLogger != null) {
                customLogger.i(tag, content, tr);
            } else {
                Log.i(tag, content, tr);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public static void m(String msg) {
        try {
            if (!allowI || TextUtils.isEmpty(msg))
                return;
            StackTraceElement caller = getCallerStackTraceElement();
            String tag = generateTag(caller);

            int strLength = msg.length();
            int start = 0;
            int end = LOG_MAXLENGTH;
            for (int i = 0; i < 100; i++) {
                //剩下的文本还是大于规定长度则继续重复截取并输出
                if (strLength > end) {
                    Log.e(tag + i, msg.substring(start, end));
                    start = end;
                    end = end + LOG_MAXLENGTH;
                } else {
                    Log.e(tag + i, msg.substring(start, strLength - 1));
                    break;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void v(String content) {
        if (!allowV)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.v(tag, content);
        } else {
            Log.v(tag, content);
        }
    }

    public static void v(String content, Throwable tr) {
        if (!allowV)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.v(tag, content, tr);
        } else {
            Log.v(tag, content, tr);
        }
    }

    public static void w(String content) {
        if (!allowW || TextUtils.isEmpty(content))
            return;
        try {
            StackTraceElement caller = getCallerStackTraceElement();
            String tag = generateTag(caller);

            if (customLogger != null) {
                customLogger.w(tag, content);
            } else {
                Log.w(tag, content);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void w(String content, Throwable tr) {
        if (!allowW)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.w(tag, content, tr);
        } else {
            Log.w(tag, content, tr);
        }
    }

    public static void w(Throwable tr) {
        if (!allowW)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.w(tag, tr);
        } else {
            Log.w(tag, tr);
        }
    }

    public static void wtf(String content) {
        if (!allowWtf)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.wtf(tag, content);
        } else {
            Log.wtf(tag, content);
        }
    }

    public static void wtf(String content, Throwable tr) {
        if (!allowWtf)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.wtf(tag, content, tr);
        } else {
            Log.wtf(tag, content, tr);
        }
    }

    public static void wtf(Throwable tr) {
        if (!allowWtf)
            return;
        StackTraceElement caller = getCallerStackTraceElement();
        String tag = generateTag(caller);

        if (customLogger != null) {
            customLogger.wtf(tag, tr);
        } else {
            Log.wtf(tag, tr);
        }
    }

    private static StackTraceElement getCallerStackTraceElement() {
        return Thread.currentThread().getStackTrace()[4];
    }

    public static void point(String path, String tag, String msg) {
        if (isSDAva()) {
            Date date = new Date();
            SimpleDateFormat dateFormat = new SimpleDateFormat("", Locale.SIMPLIFIED_CHINESE);
            dateFormat.applyPattern("yyyy");
            path = path + dateFormat.format(date) + "/";
            dateFormat.applyPattern("MM");
            path += dateFormat.format(date) + "/";
            dateFormat.applyPattern("dd");
            path += dateFormat.format(date) + ".log";
            dateFormat.applyPattern("[yyyy-MM-dd HH:mm:ss]");
            String time = dateFormat.format(date);
            File file = new File(path);
            if (!file.exists())
                createDipPath(path);
            BufferedWriter out = null;
            try {
                out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file, true)));
                out.write(time + " " + tag + " " + msg + "\r\n");
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                try {
                    if (out != null) {
                        out.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    /**
     * 根据文件路径 递归创建文件
     *
     * @param file
     */
    public static void createDipPath(String file) {
        String parentFile = file.substring(0, file.lastIndexOf("/"));
        File file1 = new File(file);
        File parent = new File(parentFile);
        if (!file1.exists()) {
            parent.mkdirs();
            try {
                file1.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * A little trick to reuse a formatter in the same thread
     */
    private static class ReusableFormatter {

        private Formatter formatter;
        private StringBuilder builder;

        public ReusableFormatter() {
            builder = new StringBuilder();
            formatter = new Formatter(builder);
        }

        public String format(String msg, Object... args) {
            formatter.format(msg, args);
            String s = builder.toString();
            builder.setLength(0);
            return s;
        }
    }

    private static final ThreadLocal<ReusableFormatter> thread_local_formatter = new ThreadLocal<ReusableFormatter>() {
        protected ReusableFormatter initialValue() {
            return new ReusableFormatter();
        }
    };

    public static String format(String msg, Object... args) {
        ReusableFormatter formatter = thread_local_formatter.get();
        return formatter.format(msg, args);
    }

    public static boolean isSDAva() {
        return Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED) || Environment.getExternalStorageDirectory().exists();
    }
}
